Fcab?

mikemaster03 · 03-19-2013, 06:08 PM

My steering twitches slightly under braking,and i dont think its rotors as i had them replaced two months ago.

Its fine during normal driving but if i press hard and suddenly the steering turns/twitches a little bit. It happens when the weight transfers to the front during braking.

I know my FCABs are slightly worn - could this be the reason? How can i isolate the problem?

katu · 03-19-2013, 06:35 PM

How many miles on the CABs? If you have someone to help you: drive you car slowly (less than 5mph) and when you apply the brakes and come to a stop worn CABs will allow the front wheels to pop out / move slightly. Good condition CABs will not allow this movement/play of the front wheels.

mikemaster03 · 03-19-2013, 06:42 PM

I think its the FCAB, will get them replaced soon

I have about 50k miles on the car - just acquired it recently.

katu · 03-19-2013, 06:46 PM

My FCABs were shot at 60,000 miles.

taibinhvuong · 03-19-2013, 07:20 PM

Yes, if your steering twitched under braking, then it's very likely that the fcabs are worn.

Mango · 03-19-2013, 07:32 PM

It is 100% the fcabs. Ask yourself a very simple question: are they original? "yes" or "i don't know" then replace it.

Welcome and be sure to see sig, do it all!

mikemaster03 · 03-19-2013, 09:07 PM

Quote:

Originally Posted by Mango

see sig, do it all!

Never seen that before, Hehe, Your sig was one of the first things I bookmarked as soon as i got my car, busy with the some items on the maintenance list then cooling.

Mango · 03-19-2013, 10:05 PM

Quote:

Originally Posted by mikemaster03

Never seen that before, Hehe, Your sig was one of the first things I bookmarked as soon as i got my car, busy with the some items on the maintenance list then cooling.

Awesome! Lots of people have came up to me and said that at meets. "Are you E46mango? I used/bookmarked your guide even before I bought my car"

Good going. Little by little. start from left to right in order from most important to least! GL!

terzinator · 03-19-2013, 11:28 PM

If the CABs are worn, when you brake, you'll hear/feel a distinctive jolt/clunk/thunk. You don't have to go fast; just five or 10 mph will do it, and then press the brake pedal smartly.

I had that thunk, replaced the CABs, and no more thunk.

03-19-2013, 06:08 PM	#1
mikemaster03 Registered User Join Date: Feb 2013 Location: Toronto Posts: 20 My Ride: E46 330i '03 View My Garage	Fcab? My steering twitches slightly under braking,and i dont think its rotors as i had them replaced two months ago. Its fine during normal driving but if i press hard and suddenly the steering turns/twitches a little bit. It happens when the weight transfers to the front during braking. I know my FCABs are slightly worn - could this be the reason? How can i isolate the problem?

03-19-2013, 06:35 PM	#2
katu Registered User Join Date: Jan 2011 Location: Santa Rosa, CA Posts: 504 My Ride: '04 330ci ZHP View My Garage	How many miles on the CABs? If you have someone to help you: drive you car slowly (less than 5mph) and when you apply the brakes and come to a stop worn CABs will allow the front wheels to pop out / move slightly. Good condition CABs will not allow this movement/play of the front wheels. __________________

03-19-2013, 06:46 PM	#4
katu Registered User Join Date: Jan 2011 Location: Santa Rosa, CA Posts: 504 My Ride: '04 330ci ZHP View My Garage	My FCABs were shot at 60,000 miles. __________________ Last edited by katu; 03-19-2013 at 06:46 PM.

03-19-2013, 07:32 PM	#6
Mango Grand Superpatriot Join Date: Mar 2006 Location: Southern California Posts: 16,539 My Ride: M54B30 View My Garage	It is 100% the fcabs. Ask yourself a very simple question: are they original? "yes" or "i don't know" then replace it. Welcome and be sure to see sig, do it all! __________________ Cooling \| Maintenance \| Vacuum \| Suspension \| Costs "Be a yardstick of quality. Some people aren't used to an environment where excellence is expected." -Steve Jobs

03-19-2013, 11:28 PM	#9
terzinator Registered User Join Date: Jan 2013 Location: Twin Cities MN Posts: 208 My Ride: 325iT 5-sp RWD Sport View My Garage	If the CABs are worn, when you brake, you'll hear/feel a distinctive jolt/clunk/thunk. You don't have to go fast; just five or 10 mph will do it, and then press the brake pedal smartly. I had that thunk, replaced the CABs, and no more thunk. __________________ E46FANATICS Touring Forum! Last edited by terzinator; Tomorrow at 11:41 PM. REASON: Emerged from snowdrift with idea.

03-19-2013, 06:42 PM	#3
mikemaster03 Registered User Join Date: Feb 2013 Location: Toronto Posts: 20 My Ride: E46 330i '03 View My Garage	I think its the FCAB, will get them replaced soon I have about 50k miles on the car - just acquired it recently.

03-19-2013, 07:20 PM	#5
taibinhvuong Registered User Join Date: Mar 2006 Location: San Francisco Posts: 707 My Ride: E46 99' 328i View My Garage	Yes, if your steering twitched under braking, then it's very likely that the fcabs are worn.

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